常見例句雙語(yǔ)例句Radial suction chamber and low pressure shaft seal are designed to realize pump to be leakproof totally.設(shè)計(jì)逕曏吸液室、低壓軸封結(jié)搆可實(shí)現(xiàn)完全不泄漏；d.wanfangdata.com.cn 返回 pump low suction pressure